JPH0726579A - Blade device for construction machine with upper slewing body - Google Patents
Blade device for construction machine with upper slewing bodyInfo
- Publication number
- JPH0726579A JPH0726579A JP34510992A JP34510992A JPH0726579A JP H0726579 A JPH0726579 A JP H0726579A JP 34510992 A JP34510992 A JP 34510992A JP 34510992 A JP34510992 A JP 34510992A JP H0726579 A JPH0726579 A JP H0726579A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- earth
- discharging plate
- soil
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Operation Control Of Excavators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は上部旋回体付き建設機
械、特には油圧パワーショベルに装着する排土板装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction machine equipped with an upper swing body, and more particularly to an earth-discharging plate device mounted on a hydraulic power shovel.
【０００２】[0002]
【従来の技術】図１３は従来の排土板付き油圧パワーシ
ョベルの全体図であり、１は上部旋回体、３は作業機、
４は下部走行体、６は履帯、１０は排土板で、車体の前
方に揺動自在に装着されている。排土板１０は排土作業
を行う場合に使用されるが、その他に車両安定用のアウ
トリガとしても利用される。以下にアウトリガとしての
効果について説明する。2. Description of the Related Art FIG. 13 is an overall view of a conventional hydraulic power shovel equipped with an earth dumping plate, 1 is an upper swing body, 3 is a working machine,
Reference numeral 4 is a lower traveling body, 6 is a crawler belt, and 10 is an earth shaving plate, which is swingably attached to the front of the vehicle body. The earth discharging plate 10 is used for earth discharging work, but is also used as an outrigger for stabilizing the vehicle. The effect as an outrigger will be described below.
【０００３】図１４、図１５は作業機３の先端で物を持
ち上げたような場合の状態図であり、図１４は排土板の
無い場合であり、図１５は排土板の有る場合である。作
業機３の先端Ｓ点の下向きの力をＦ、車体重心Ｇにおけ
る車体重量をＷとする。図１４に示す排土板無しの場合
には支点は履帯６の前方の接地点Ｘであり、Ｇ−Ｘの距
離をｌ1 、Ｓ−Ｘの距離をＬ1 とすると車体重量で決ま
るＦの最大値はＦ1 ＝Ｗ・ｌ1 ／Ｌ1 となる。それに対
し、図１５に示す排土板有りの場合には支点は排土板１
０の先端の接地点Ｙであり、Ｇ−Ｙの距離をｌ2 、Ｓ−
Ｙの距離をＬ2とするとＦ2 ＝Ｗｌ2 ／Ｌ2 となる。図
から明らかなように、ｌ2 ＞ｌ1 、Ｌ2＜Ｌ1 であるか
らＦ2 ＞Ｆ1 となり、排土板有りの方が大きな荷重でバ
ランスすることとなる。FIGS. 14 and 15 are state diagrams when an object is lifted by the tip of the working machine 3, FIG. 14 is a case without a soil discharge plate, and FIG. 15 is a case with a soil discharge plate. is there. The downward force of the point S of the working machine 3 is F, and the vehicle weight at the vehicle body weight center G is W. In the case of no soil plate shown in FIG. 14, the fulcrum is the ground contact point X in front of the crawler belt 6, and if the distance of G-X is l 1 and the distance of S-X is L 1 , it is determined by the body weight of F. The maximum value is F 1 = W · l 1 / L 1 . On the other hand, in the case of the soil removal plate shown in FIG. 15, the fulcrum is the soil removal plate 1
It is the grounding point Y at the tip of 0, and the distance of G-Y is l 2 , S-
If the distance of Y is L 2 , then F 2 = Wl 2 / L 2 . As is clear from the figure, since l 2 > l 1 and L 2 <L 1 , F 2 > F 1 , and the presence of the soil scavenger plate balances with a larger load.
【０００４】図１６、図１７は作業機３の先端で押し下
げ作業を行う場合を示し、図１６は排土板無しの場合、
図１７は排土板有りの場合を示す。この場合には排土板
１０は図１７に示すように車体後方に位置させる。作業
機３の先端Ｓ点の上向きの力をＦ、図１５における支点
である履帯６の後方の接地点をＸとし、Ｇ−Ｘの距離を
ｌ3 、Ｓ−Ｘの距離をＬ3 とすると車体重量で決まるＦ
の最大値はＦ3 ＝Ｗ・ｌ3 ／Ｌ3 となる。図１７におい
ては支点は排土板１０の先端の接地点Ｙとなり、Ｇ−Ｙ
の距離をｌ4 、Ｓ−Ｙの距離をＬ4 とするとＦ4 ＝Ｗｌ
4 ／Ｌ4 となり、ｌ4 ／ｌ3 の値はＬ4 ／Ｌ3 の値より
大きいからＦ4 ＞Ｆ3 となる。上述のごとく、排土板１
０をアウトリガとして使用することにより作業機３の先
端に大きな荷重を掛けることができ、作業能力が向上す
る。16 and 17 show a case where the work machine 3 is pushed down by the tip thereof, and FIG.
FIG. 17 shows the case where the soil discharging plate is provided. In this case, the earth discharging plate 10 is located behind the vehicle body as shown in FIG. When the upward force of the tip S of the working machine 3 is F, the ground contact point behind the crawler belt 6 which is the fulcrum in FIG. 15 is X, the distance G-X is l 3 , and the distance S-X is L 3. F determined by body weight
The maximum value of is F 3 = W · l 3 / L 3 . In FIG. 17, the fulcrum is the grounding point Y at the tip of the soil discharging plate 10, and G-Y
When the distance of the distance l 4, S-Y and L 4 F 4 = Wl
4 / L 4 , and the value of l 4 / l 3 is larger than the value of L 4 / L 3 , so that F 4 > F 3 . As mentioned above, the soil plate 1
By using 0 as the outrigger, a large load can be applied to the tip of the working machine 3, and the working capacity is improved.
【０００５】[0005]
【発明が解決しようとする課題】周知のごとく、上部が
旋回できる車両のメリットは、下部走行体の向きに関係
なく、上部を旋回させて目的とする作業が行えることで
ある。しかしながら、上記構成によれば、排土板が車体
前方のみに装着されているため、前述のように排土板を
アウトリガとして使用する場合、あらゆる作業に対して
その効果を充分に発揮させるためには下部走行体を最大
１８０°操向させなければならない。また、排土板を使
用する作業を行う場合でも、最悪の場合、１８０°操向
が必要となり、特に狭隘な場所での作業が極めて困難と
なる。As is well known, a merit of a vehicle whose upper part can be turned is that the upper part can be turned to perform a desired work regardless of the direction of the lower traveling body. However, according to the above configuration, since the soil discharging plate is attached only to the front of the vehicle body, when the soil discharging plate is used as an outrigger as described above, in order to sufficiently exert its effect for all work. Has to steer the undercarriage up to 180 °. Further, even in the case of performing the work using the earth dumping plate, in the worst case, it is necessary to steer by 180 °, which makes it extremely difficult to perform the work especially in a narrow place.
【０００６】本発明は上記の問題点に着目してなされた
もので、作業能力を向上し、しかも狭隘な場所でも作業
性の良い上部旋回体付き建設機械の排土板装置を提供す
ることを目的としている。The present invention has been made in view of the above problems, and it is an object of the present invention to provide an excavator plate device for a construction machine with an upper revolving structure which has improved workability and good workability even in a narrow place. Has an aim.
【０００７】[0007]
【課題を解決するための手段】上記目的達成のため、本
発明に係る上部旋回体付き建設機械の排土板装置の第１
の発明においては、車体前部および後部に、アウトリガ
として使用可能な排土板を設けたことを特徴としてお
り、第２の発明においては、前記排土板の下部にアウト
リガ用の支え板を有することを特徴としており、第３の
発明においては、前記排土板の油圧操作回路に、前後の
排土板の操作回路を切り換える切換装置を具備せること
を特徴としており、第４の発明においては、前記切換装
置が、パイロット油圧回路を切り換えるパイロット切換
弁と、前記パイロット切換弁を切り換える切換スイッチ
と、前記パイロット油圧により切り換えられる切換弁と
を備えたことを特徴としており、第５の発明において
は、前記切換スイッチを運転席の近傍に配設したことを
特徴としており、第６の発明においては、前記切換弁を
切り換えることにより選択的に前後の排土板を操作する
操作レバーを、運転席の近傍に備えたことを特徴として
いる。In order to achieve the above object, the first embodiment of the earth discharging plate device for a construction machine with an upper swing body according to the present invention.
In the invention, the soil discharging plate that can be used as an outrigger is provided at the front portion and the rear portion of the vehicle body. In the second invention, a supporting plate for the outrigger is provided at a lower portion of the soil discharging plate. In the third invention, the hydraulic operating circuit for the soil discharging plate is provided with a switching device for switching the operating circuit for the front and rear soil discharging plates. In the fourth invention, The switching device includes a pilot switching valve that switches a pilot hydraulic circuit, a switching switch that switches the pilot switching valve, and a switching valve that is switched by the pilot hydraulic pressure. In the fifth invention, The changeover switch is arranged near the driver's seat. In the sixth invention, the changeover valve is changed over. An operation lever for operating the front and rear a blade in 択的 is characterized by having in the vicinity of the driver's seat.
【０００８】[0008]
【作用】上記構成によれば、上部旋回体付き建設機械の
排土板装置において、車体の前後に、下部にアウトリガ
用の支え板を取り付けた排土板を装着し、前後の排土板
装置の油圧操作回路を切り換えるパイロット切換弁と、
切換スイッチと、切換弁とを設け、切換スイッチと排土
板操作レバーとを運転席の近傍に配設したため、アウト
リガとして利用する場合にも、排土板を使用する作業を
行う場合にも、運転席において任意に前後の排土板を操
作することが可能であり、排土作業の方向を変える場
合、９０°以上の操向をする必要がない。According to the above construction, in the soil discharging device for the construction machine with the upper swing body, the soil discharging device having the support plate for the outrigger attached to the lower part is attached to the front and rear of the vehicle body, Pilot switching valve that switches the hydraulic operation circuit of
Since the changeover switch and the changeover valve are provided, and the changeover switch and the earth-discharging plate operating lever are arranged in the vicinity of the driver's seat, both when using as an outrigger and when using the earth-discharging plate, It is possible to arbitrarily operate the front and rear dumping plates in the driver's seat, and when changing the direction of the dumping work, it is not necessary to steer by 90 ° or more.
【０００９】[0009]
【実施例】以下に、本発明に係る上部旋回体付き建設機
械の排土板装置の実施例について、図面を参照して詳述
する。図１は油圧パワーショベルの全体図であり、１は
運転室２を有する上部旋回体であり、３は作業機、４は
履帯６を卷装した下部走行体であり、１０は前方の排土
板、２０は後方の排土板である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an earth discharging plate device for a construction machine with an upper swing body according to the present invention will be described in detail below with reference to the drawings. 1 is an overall view of a hydraulic power shovel, 1 is an upper revolving structure having a driver's cab 2, 3 is a working machine, 4 is a lower traveling structure equipped with a crawler belt 6, and 10 is front soil removal A plate, 20 is a rear soil discharging plate.
【００１０】図２は排土板１０の装着図であり、図３は
排土板１０の平面図、図４は図３のＡ−Ａ断面図であ
る。排土板１０は前面板１１とサイドフレーム１２とか
ら構成され、前面板１１の下部には支え板１３が装着さ
れ、アウトリガとして使用する場合に地面にくい込まな
いようになっている。サイドフレーム１２の端部は図２
に示すように、下部走行体４のフレーム５にピン１４で
揺動自在に軸着されている。また、サイドフレーム１２
とフレーム５とは油圧シリンダ１５により連結され、油
圧シリンダ１５を伸縮させることにより排土板１０を上
下させるようになっている。なお、後方の排土板２０も
同様な構成となっている。FIG. 2 is a mounting view of the soil discharge plate 10, FIG. 3 is a plan view of the soil discharge plate 10, and FIG. 4 is a sectional view taken along line AA of FIG. The earth-discharging plate 10 is composed of a front plate 11 and a side frame 12, and a supporting plate 13 is attached to the lower part of the front plate 11 so as not to get into the ground when used as an outrigger. The end of the side frame 12 is shown in FIG.
As shown in FIG. 3, a pin 14 is pivotally attached to a frame 5 of the lower traveling body 4 by a pin 14. Also, the side frame 12
The frame 5 is connected to the frame 5 by a hydraulic cylinder 15, and the soil discharge plate 10 is moved up and down by expanding and contracting the hydraulic cylinder 15. Note that the rear soil plate 20 has the same structure.
【００１１】図５は運転室２の側面図であり、図６は平
面図である。オペレータシート３０の前方には操向レバ
ー３１，３２、作業機操作レバー３３，３４が配設さ
れ、右側には排土板操作レバー３５および、切換スイッ
チ３７を有する操作パネル３６が配設されている。FIG. 5 is a side view of the cab 2, and FIG. 6 is a plan view. Steering levers 31, 32, work machine operating levers 33, 34 are arranged in front of the operator seat 30, and an earth plate operating lever 35 and an operating panel 36 having a changeover switch 37 are arranged on the right side. There is.
【００１２】図７、図８は作業機の油圧回路図であり、
図７は上部旋回体１の、図８は下部操向体４の油圧回路
図である。図７において、４０は油圧ポンプ、４１はパ
イロット用油圧ポンプでエンジン４２により駆動され
る。４３は排土板操作弁で排土板操作レバー３５により
操作される。回路４４、４５は図８に示すスイベルジョ
イント５０に接続している。４６はパイロット圧回路を
切り換えるパイロット切換弁で、電気的に切換スイッチ
３７に接続している。また、回路４７はスイベルジョイ
ント５０に接続している。7 and 8 are hydraulic circuit diagrams of the working machine,
FIG. 7 is a hydraulic circuit diagram of the upper swing body 1, and FIG. 8 is a hydraulic circuit diagram of the lower steering body 4. In FIG. 7, a hydraulic pump 40 and a pilot hydraulic pump 41 are driven by the engine 42. Reference numeral 43 denotes a soil discharge plate operating valve which is operated by the soil discharge plate operating lever 35. The circuits 44 and 45 are connected to the swivel joint 50 shown in FIG. Reference numeral 46 is a pilot switching valve for switching the pilot pressure circuit, which is electrically connected to the switching switch 37. The circuit 47 is connected to the swivel joint 50.
【００１３】図８のスイベルジョイント５０のポート
Ａ，Ｂ，Ｃ，Ｄは右走行モータ５１、左走行モータ５２
に接続しており、ポートＥ，Ｆは図７に示す排土板操作
弁４３の回路４４，４５と接続しており、ポートＧは図
７の切換弁４６の回路４７と接続している。１５は前方
の排土板１０の油圧シリンダであり、２５は後方の排土
板２０の油圧シリンダである。５３、５４は切換弁で、
スイベルジョイント５０のポートＥ，Ｆと油圧シリンダ
１５，２５とを接続する回路上に介装されており、ポー
トＧを介してパイロット切換弁４６と接続している。Ports A, B, C and D of the swivel joint 50 shown in FIG. 8 are a right traveling motor 51 and a left traveling motor 52.
7, the ports E and F are connected to the circuits 44 and 45 of the soil discharge plate operating valve 43 shown in FIG. 7, and the port G is connected to the circuit 47 of the switching valve 46 shown in FIG. Reference numeral 15 is a hydraulic cylinder of the front soil discharging plate 10, and 25 is a hydraulic cylinder of the rear soil discharging plate 20. 53 and 54 are switching valves,
The swivel joint 50 is provided on a circuit that connects the ports E and F to the hydraulic cylinders 15 and 25, and is connected to the pilot switching valve 46 through the port G.
【００１４】次に排土板操作について説明する。通常は
切換弁５３、５４はＩの位置にあり、ポートＥ，Ｆと油
圧シリンダ１５とが接続しているため、オペレータが排
土板操作レバー３５を操作すると前方の排土板１０が上
昇、下降する。オペレータが操作パネル３６の切換スイ
ッチ３７によりパイロット切換弁４６を切り換えると、
パイロット圧により切換弁５３、５４はII位置に切り換
えられ、ポートＥ，Ｆは油圧シリンダ２５と接続し、オ
ペレータが排土板操作レバー３５を操作すると後方の排
土板２０が上昇、下降する。排土板操作レバー３５を中
立位置にすれば前後の排土板１０、２０は保持の状態と
なる。従って、排土板１０および２０を片側づつ操作す
れば前後の排土板１０および２０を接地状態に保持する
ことが可能である。Next, the operation of the earth discharging plate will be described. Normally, the switching valves 53 and 54 are at the position I, and the ports E and F are connected to the hydraulic cylinder 15. Therefore, when the operator operates the earth plate operating lever 35, the front earth plate 10 moves upward. To descend. When the operator switches the pilot switching valve 46 with the switching switch 37 of the operation panel 36,
The switching valves 53 and 54 are switched to the II position by the pilot pressure, the ports E and F are connected to the hydraulic cylinder 25, and when the operator operates the earth plate operating lever 35, the rear earth plate 20 moves up and down. When the soil discharge plate operating lever 35 is set to the neutral position, the front and rear soil discharge plates 10 and 20 are held. Therefore, by operating the soil discharge plates 10 and 20 on each side, the front and rear soil discharge plates 10 and 20 can be held in the grounded state.
【００１５】前後の排土板を接地状態に保持した場合、
横方向の安定性は次のようになる。図９は横方向の安定
性を説明する図であり、上部旋回体１を９０°旋回させ
た場合を示す。車体中心から履帯６の外側までの距離を
Ｌ0 とし、作業機３の先端Ｓから履帯６の外側までの距
離をそれぞれＬ5 、Ｌ6 とする。作業機３の先端Ｓで吊
り上げた場合、バランス力Ｆ＝Ｗｌ／Ｌ5 となり、作業
機３の先端Ｓで押し下げた場合、バランス力Ｆ＝Ｗｌ／
Ｌ6 となる。排土板１０を接地させると図１０に示すよ
うにＬ0 はｌ5 となり、ｌ5 ＞Ｌ0 であるから、このと
きのバランス力Ｆは排土板１０の無い場合よりも大きく
なる。前後の排土板１０および２０を接地させると、ｌ
5 はｌ6 となり、ｌ6 ＞ｌ5 であるから、このときのバ
ランス力Ｆは更に大きくなる。When the front and rear soil discharging plates are held in a grounded state,
Lateral stability is as follows. FIG. 9 is a diagram for explaining the stability in the lateral direction, and shows a case where the upper-part turning body 1 is turned by 90 °. The distance from the center of the vehicle body to the outside of the crawler belt 6 is L 0, and the distance from the tip S of the working machine 3 to the outside of the crawler belt 6 is L 5 and L 6 , respectively. When lifted by the tip S of the working machine 3, the balance force F = Wl / L 5 , and when pushed down by the tip S of the working machine 3, the balance force F = Wl / L 5 .
It becomes L 6 . When the soil discharging plate 10 is grounded, L 0 becomes l 5 as shown in FIG. 10 and l 5 > L 0 , so the balance force F at this time becomes larger than that in the case without the soil discharging plate 10. If the front and rear earth removal plates 10 and 20 are grounded,
Since 5 becomes l 6 and l 6 > l 5 , the balance force F at this time is further increased.
【００１６】排土板を接地させた場合と、接地させない
場合とのバランス力の違いのイメージを図に示すと図１
１のようになる。（ａ）に示すように上部旋回体の旋回
角度をθとすると、作業機の先端で吊り上げた場合
（ｂ）のようになる。縦軸は吊り上げ時の車体バランス
力Ｆ、横軸は旋回角度θである。図中、曲線Ａは前後の
排土板を接地させた場合、曲線Ｂは前方の排土板のみを
接地させた場合、曲線Ｃは排土板を全く接地させなかっ
た場合である。（ｃ）は作業機先端で押し下げた場合を
示し、縦軸は押し下げ時の車体バランス力Ｆで、他は
（ｂ）と同じである。図からあきらかなように、どのよ
うな作業姿勢においても前後の排土板を接地させた場合
が最もＦが大きく、作業能力が向上する。FIG. 1 shows an image of the difference in balance force between the case where the earth-discharging plate is grounded and the case where it is not grounded.
It becomes like 1. As shown in (a), when the turning angle of the upper-part turning body is θ, the result is as shown in (b) when it is lifted by the tip of the working machine. The vertical axis represents the body balancing force F during lifting, and the horizontal axis represents the turning angle θ. In the figure, a curve A is the case where the front and rear soil discharging plates are grounded, a curve B is the case where only the front soil discharging plate is grounded, and a curve C is the case where the soil discharging plate is not grounded at all. (C) shows the case where the work machine is pushed down at the tip, and the vertical axis shows the body balancing force F at the time of pushing down, and the others are the same as (b). As is clear from the figure, in any work posture, when the front and rear soil discharge plates are grounded, F is the largest and the work ability is improved.
【００１７】図１２は前後に排土板を装着したことによ
る排土作業時の効果を説明する図である。排土作業時の
方向転換は下部走行体を操向することにより行うが、排
土板が前方のみにある場合、（ａ）に示すように９０°
より大きいＺ方向に方向転換する場合にはθ1 だけ操向
する必要がある。しかるに、前後に排土板を備えた場合
には、（ｂ）に示すようにθ2 だけ操向すればよい。θ
1 ＞θ2 であり、当然（ｂ）の方が操向角が少なくてす
む。これをグラフで表すと（ｃ）のようになる。縦軸は
下部走行体の必要な操向角度で、上側は右旋回、下側は
左旋回であり、横軸は方向転換すべき角度θである。図
中、実線は前後に排土板を備えた場合、点線は片側のみ
に排土板を備えた場合である。図から明らかなように、
前後に排土板を備えた場合には最大操向角度は９０°で
あるが、片側のみに排土板を備えた場合には最大操向角
度は１８０°になる。FIG. 12 is a view for explaining the effect at the time of earth removing work by attaching the earth removing plates to the front and rear. The direction change at the time of soil removal work is performed by steering the lower traveling body, but when the soil discharge plate is only in the front, as shown in (a), 90 °
When turning to a larger Z direction, it is necessary to steer by θ 1 . However, in the case where the soil discharging plates are provided in the front and rear, it is sufficient to steer by θ 2 as shown in (b). θ
Since 1 > θ 2 , naturally the steering angle of (b) is smaller. This is shown in a graph in (c). The vertical axis is the required steering angle of the lower traveling body, the upper side is the right turn, the lower side is the left turn, and the horizontal axis is the angle θ at which the direction should be changed. In the figure, the solid line shows the case where the front and rear soil discharging plates are provided, and the dotted line shows the case where the soil discharging plates are provided only on one side. As is clear from the figure,
The maximum steering angle is 90 ° when the soil discharging plates are provided on the front and rear sides, but the maximum steering angle is 180 ° when the soil discharging plates are provided on only one side.
【００１８】図１３は他の実施例を示すもので、上部旋
回体１に装着された作業機３の先端に装着された把持器
１６によって重量の重い尺度の鋼材１７を把持し、設置
あるいは撤去する鋼材ハンドリング機である。地下鉄工
事、建築地下工事やトンネル工事等、狭隘で地盤の軟弱
な場所で使用されることが多く、従来の排土板では荷重
がかかった場合、地盤にくい込んで車体が揺動するとい
う問題があった。しかしながら、本発明では車両の前後
に排土板１０および２０を備え、しかも支え板１３を設
けたため接地圧が低くなり、地盤にくい込むことがなく
極めて安定した作業が行え、本実施例のような場合には
特に本発明の効果は大きい。FIG. 13 shows another embodiment, in which a heavy-weight steel material 17 is gripped by a gripper 16 mounted on the tip of a working machine 3 mounted on the upper swing body 1, and installed or removed. It is a steel material handling machine. It is often used in narrow and soft ground areas such as subway construction, underground construction and tunnel construction.When a conventional earth dumping board is loaded, there is a problem that the ground will get stuck and the car body will swing. there were. However, according to the present invention, since the soil discharge plates 10 and 20 are provided at the front and rear of the vehicle and the support plate 13 is provided, the ground contact pressure is low, and extremely stable work can be performed without getting into the ground. In this case, the effect of the present invention is particularly great.
【００１９】[0019]
【発明の効果】以上詳述したごとく、本発明は、上部旋
回体付き建設機械の前後に、アウトリガ用の支え板を有
する排土板を装着した。また、前後排土板の油圧回路の
切換装置を設け、前後の切り換えを行う切換スイッチ
と、選択的に前後の排土板を操作する一本の排土板操作
レバーを運転席の近傍に設けたため、運転席において任
意に前後の排土板を操作することが可能であり、しか
も、排土板を接地させた場合、支え板があるため排土板
が地面にくい込むことはなく、前後の排土板を接地させ
ることにより全旋回角度にわたってバランス力が増大し
て作業能力が向上し、排土作業時の方向転換の際の操向
角度も少なくてすむ、特に狭隘な場所での作業効率のよ
い上部旋回体付き建設機械の排土板装置が得られる。As described above in detail, according to the present invention, the earth-discharging plate having the support plate for the outriggers is mounted in front of and behind the construction machine with the upper swing body. In addition, a switching device for the hydraulic circuit of the front and rear dump plates is provided, and a changeover switch for switching back and forth and a single dump plate operating lever for selectively operating the front and rear dump plates are provided near the driver's seat. Therefore, it is possible to operate the front and rear shroud in the driver's seat, and when the shredding plate is grounded, there is a support plate so that the shredding plate does not get in the ground and By grounding the earth dumping plate, the balance force is increased over the entire turning angle to improve the work capacity, and the steering angle at the time of changing the direction during earth removing work can be reduced, especially in narrow spaces. A soil dumping plate device for a construction machine with a good upper swing body can be obtained.
【図１】本発明の油圧パワーショベルの全体図である。FIG. 1 is an overall view of a hydraulic power shovel of the present invention.
【図２】本発明の排土板装置の側面図である。FIG. 2 is a side view of the earth discharging plate apparatus of the present invention.
【図３】本発明の排土板の平面図である。FIG. 3 is a plan view of an earth discharging plate of the present invention.
【図４】本発明の排土板の側面断面図である。FIG. 4 is a side sectional view of an earth discharging plate of the present invention.
【図５】本発明の運転席の側面図である。FIG. 5 is a side view of a driver's seat according to the present invention.
【図６】本発明の運転席の平面図である。FIG. 6 is a plan view of a driver's seat according to the present invention.
【図７】本発明の上部旋回体に装着された油圧装置の油
圧回路図である。FIG. 7 is a hydraulic circuit diagram of the hydraulic device mounted on the upper swing body of the present invention.
【図８】本発明の下部走行体に装着された油圧装置の油
圧回路図である。FIG. 8 is a hydraulic circuit diagram of a hydraulic device mounted on the lower traveling body of the present invention.
【図９】横方向安定度の説明図である。FIG. 9 is an explanatory diagram of lateral stability.
【図１０】横方向安定度に対する排土板の効果の説明図
である。FIG. 10 is an explanatory diagram of the effect of the soil discharging plate on the lateral stability.
【図１１】排土板の安定度に対する効果を表すグラフで
ある。FIG. 11 is a graph showing the effect on the stability of the soil discharging plate.
【図１２】排土作業時の操向角度の違いを説明するグラ
フである。FIG. 12 is a graph for explaining a difference in steering angle during earth removing work.
【図１３】従来の前方のみに排土板を備えた油圧パワー
ショベルの全体図である。FIG. 13 is an overall view of a conventional hydraulic power shovel having a soil discharging plate only on the front side.
【図１４】排土板無しの場合の吊り上げ時の安定度の説
明図である。FIG. 14 is an explanatory diagram of the stability at the time of hoisting without an earth discharging plate.
【図１５】排土板有りの場合の吊り上げ時の安定度の説
明図である。FIG. 15 is an explanatory diagram of the stability at the time of lifting in the case where the soil discharging plate is provided.
【図１６】排土板無しの場合の押し下げ時の安定度の説
明図である。FIG. 16 is an explanatory diagram of the stability at the time of pushing down without the soil discharging plate.
【図１７】排土板有りの場合の押し下げ時の安定度の説
明図である。FIG. 17 is an explanatory diagram of stability at the time of pushing down in the case where there is an earth discharging plate.
１ 上部旋回体 ２ 運転室 ３ 作業機 ４ 下部走行体 ５ フレーム ６ 履帯 １０、２０ 排土板 １３ 支え板 １５、２５ 油圧シリンダ ３５ 排土板操作レバー ３７ 切換スイッチ ４６ パイロット切換弁 ５３、５４ 切換弁 1 Upper revolving structure 2 Driver's cab 3 Working machine 4 Lower traveling structure 5 Frame 6 Crawler track 10, 20 Earth plate 13 Support plate 15, 25 Hydraulic cylinder 35 Earth plate operating lever 37 Changeover switch 46 Pilot changeover valve 53, 54 Changeover valve
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年１２月１６日[Submission date] December 16, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図１３[Name of item to be corrected] Fig. 13
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１３】他の実施例を示す説明図である。FIG. 13 is an explanatory diagram showing another embodiment.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図１４[Name of item to be corrected] Fig. 14
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１４】従来の前方のみに排土板を備えた油圧パワー
ショベルの全体図である。FIG. 14 is an overall view of a conventional hydraulic power shovel having a soil discharging plate only on the front side.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図１５[Correction target item name] Figure 15
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１５】排土板無しの場合の吊り上げ時の安定度の説
明図である。FIG. 15 is an explanatory diagram of the stability at the time of hoisting without an earth discharging plate.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図１６[Correction target item name] Fig. 16
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１６】排土板有りの場合の吊り上げ時の安定度の説
明図である。FIG. 16 is an explanatory diagram of the stability at the time of lifting in the case where the soil discharging plate is provided.
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図１７[Name of item to be corrected] Fig. 17
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１７】排土板無しの場合の押し下げ時の安定度の説
明図である。FIG. 17 is an explanatory diagram of the stability at the time of pushing down in the case where there is no soil plate.
【手続補正６】[Procedure correction 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図１８[Name of item to be corrected] Fig. 18
【補正方法】追加[Correction method] Added
【補正内容】[Correction content]
【図１８】排土板有りの場合の押し下げ時の安定度の説
明図である。FIG. 18 is an explanatory diagram of stability at the time of pushing down in the case where there is a soil discharging plate.
Claims (6)
て使用可能な排土板を設けたことを特徴とする上部旋回
体付き建設機械の排土板装置。1. An earth-discharging plate device for a construction machine with an upper revolving structure, wherein an earth-discharging plate that can be used as an outrigger is provided on a front portion and a rear portion of a vehicle body.
板を有することを特徴とする請求項１の上部旋回体付き
建設機械の排土板装置。2. The earth discharging plate apparatus for a construction machine with an upper revolving structure according to claim 1, further comprising a support plate for an outrigger at a lower portion of the earth discharging plate.
土板の操作回路を切り換える切換装置を具備せることを
特徴とする請求項１の上部旋回体付き建設機械の排土板
装置。3. The earth discharging plate apparatus for a construction machine with an upper swing body according to claim 1, wherein the hydraulic operating circuit for the earth discharging plate is provided with a switching device for switching operation circuits of the front and rear earth discharging plates. .
切り換えるパイロット切換弁と、前記パイロット切換弁
を切り換える切換スイッチと、前記パイロット油圧によ
り切り換えられる切換弁とを備えたことを特徴とする請
求項３の上部旋回体付き建設機械の排土板装置。4. The switching device includes a pilot switching valve that switches a pilot hydraulic circuit, a switching switch that switches the pilot switching valve, and a switching valve that is switched by the pilot hydraulic pressure. Soil plate device for construction machinery with upper revolving structure.
したことを特徴とする請求項４の上部旋回体付き建設機
械の排土板装置。5. The earth discharging device for a construction machine with an upper revolving structure according to claim 4, wherein the changeover switch is arranged near a driver's seat.
的に前後の排土板を操作する一本のレバーを、運転席の
近傍に備えたことを特徴とする請求項４の上部旋回体付
き建設機械の排土板装置。6. The construction with an upper revolving structure according to claim 4, wherein a single lever for selectively operating the front and rear dump plates by switching the switching valve is provided near a driver's seat. Excavator device for machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34510992A JPH0726579A (en) | 1992-12-02 | 1992-12-02 | Blade device for construction machine with upper slewing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34510992A JPH0726579A (en) | 1992-12-02 | 1992-12-02 | Blade device for construction machine with upper slewing body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0726579A true JPH0726579A (en) | 1995-01-27 |
Family
ID=18374346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34510992A Pending JPH0726579A (en) | 1992-12-02 | 1992-12-02 | Blade device for construction machine with upper slewing body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726579A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6283106B1 (en) | 1997-09-11 | 2001-09-04 | Denso Corporation | Control apparatus for internal combustion engine |
| JP2007231645A (en) * | 2006-03-02 | 2007-09-13 | Shin Caterpillar Mitsubishi Ltd | Lifting device of turning type work machine |
| JP2008286702A (en) * | 2007-05-18 | 2008-11-27 | Nippon Telegr & Teleph Corp <Ntt> | Device and method for evaluating moisture permeability |
| WO2018070613A1 (en) * | 2016-10-10 | 2018-04-19 | 한국생산기술연구원 | Reactive force support structure for supporting repulsive force generated by hydraulic breaker hammering, and small-sized hydraulic hammer-type breaking apparatus comprising same |
-
1992
- 1992-12-02 JP JP34510992A patent/JPH0726579A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6283106B1 (en) | 1997-09-11 | 2001-09-04 | Denso Corporation | Control apparatus for internal combustion engine |
| JP2007231645A (en) * | 2006-03-02 | 2007-09-13 | Shin Caterpillar Mitsubishi Ltd | Lifting device of turning type work machine |
| JP2008286702A (en) * | 2007-05-18 | 2008-11-27 | Nippon Telegr & Teleph Corp <Ntt> | Device and method for evaluating moisture permeability |
| WO2018070613A1 (en) * | 2016-10-10 | 2018-04-19 | 한국생산기술연구원 | Reactive force support structure for supporting repulsive force generated by hydraulic breaker hammering, and small-sized hydraulic hammer-type breaking apparatus comprising same |
| CN109804120A (en) * | 2016-10-10 | 2019-05-24 | 韩国生产技术研究院 | Support the counter-force support construction of the bounce occurred by the strike of hydraulic breaker and containing its small-sized broken equipment of hydraulic beating type |
| CN109804120B (en) * | 2016-10-10 | 2021-08-20 | 韩国生产技术研究院 | Counter-force bearing structure and contain its small-size crushing of hydraulic pressure striking equipment |
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